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32 results about "Butadiene Derivatives" patented technology
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Aromatic Organosulfur Functionalized 1,4-cis Polybutadiene
The present invention relates to a preparation method of aromatic organosulfur functionalized 1,4-cis polybutadiene comprising: polymerizing 1,3-butadiene or butadiene derivative in the presence of a specific catalyst in a nonpolar solvent to prepare 1,4-cis polybutadiene; and reacting the resultant polybutadiene with an aromatic organosulfur compound. Such prepared aromatic organosulfur functionalized 1,4-cis polybutadiene is without ultrahigh molecular weight region and, thus, has narrow molecular weight distribution.
Owner:KOREA KUMHO PETROCHEMICAL CO LTD
Preparation method of conjugated diene compound
ActiveCN107556153ARaw materials are cheap and easy to getMild conditionsOrganic compound preparationCatalystsBenzeneNatural product
The invention belongs to the field of fine chemicals and relevant chemical technologies and provides a preparation method of a butadiene derivative. The preparation method comprises the following steps of by taking phenylacetylene and a derivative thereof as raw materials, under the actions of a metal catalyst and an additive, performing reaction in an anhydrous organic solvent, and converting thephenylacetylene and the derivative thereof to a 2,3-di-substituted-1,3-butadiene compound. The preparation method has the beneficial effects of being simple and convenient to operate and mild in condition, being environmental friendly, having the possibility of realizing industrialization, and preparing the butadiene compound with a higher yield. The butadiene compound synthesized by utilizing the method can perform further functionalization to obtain various compounds, and then the compounds are applied to development and study of natural products, functional materials and the fine chemicals.
Owner:DALIAN UNIV OF TECH
Grafted and functionalized high 1,4-trans polybutadiene with aromatic organosulfur compound
ActiveUS20100081770A1Maximize functionalityOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationOrganosulfur compoundsSolvent
The present invention relates to a process of preparing 1,4-trans polybutadiene grafted with an aromatic organosulfur compound, the process comprising (a) preparing 1,4-trans polybutadiene by polymerizing 1,3-butadiene or butadiene derivatives in a nonpolar solvent in the presence of a particular catalyst, and (b) preparing the 1,4-trans polybutadiene grafted with an aromatic organosulfur compound by reacting the trans polybutadiene with an aromatic organosulfur compound. The organosulfur molecule in the molecular chain minimizes ultra high molecular weight fraction and narrows the molecular weight distribution, thereby enabling this polymer to show improved processability and tensile properties.
Owner:KOREA KUMHO PETROCHEMICAL CO LTD
Electroluminescent device containing a butadiene derivative
InactiveUS20070141388A1Good luminous yieldDesirable colorIncadescent screens/filtersDischarge tube luminescnet screensArylPhotochemistry
An OLED device comprises a cathode, an anode and a light-emitting layer therebetween, wherein the light-emitting layer comprises a host containing an anthracene nucleus and a light-emitting material comprising a 1,3-butadiene nucleus, wherein the butadiene nucleus is substituted in the 1 and 4 positions with independently selected aromatic groups, and wherein at least one of said aromatic groups is further substituted with an amino group, and wherein said amino group is further substituted with two independently selected aryl or heteroaryl groups.
Owner:EASTMAN KODAK CO
Preparation of homoallylic alcohol compound and synthesis method and application thereof
ActiveCN112125803AMild reaction conditionsShort reaction stepsOrganic compound preparationOrganic chemistry methodsAlkanePtru catalyst
The invention provides a preparation of homoallylic alcohol compound and a synthesis method and application thereof, and belongs to the field of organic chemistry. Under the protection of inert gas atroom temperature and in the presence of an organic photosensitizer, a titanium catalyst and an electron donor, aldehyde or ketone reacts with a 1, 3-butadiene derivative and halogenated alkane underthe irradiation of blue light, and the homoallylic alcohol compound is obtained with high selectivity. The method has the advantages of mild reaction conditions, short reaction steps, simple post-treatment and high stereoselectivity and regioselectivity of reaction products. Meanwhile, the method can be used for derivatization of natural products.
Owner:DALIAN UNIV OF TECH
Efficient high-stereoselectivity synthesis process of polysubstituted 3-cyclopenten-1-one
InactiveCN1348950AHigh yieldEfficient and high yieldPreparation by carbon monoxide reactionCyclopenteneKetone
This invention is a high-effective high-steroselectivity synthetic method for multi-substituted 3-cyclopentene-1-ketone. It is incldues the following steps: firstly, the derivative of 1,4-diiodo-1,3-butadiene dissolved in the solvent of ethyl ether or tetrachlorofuran reacts with n-butyl lithium or tert-butyl lithium under low temp., CO is further introduced,l quenching reaction is conducted, andthe pure product is obtained further through extracting, stripping, drying, concentrating and decontaminating. The said invented method is scientific and rational, is a most direct and most simple method, and the yield is high, and the product is easily decontaminated.
Owner:席振峰 +2
Molecular weight controllable, high 1,4-trans polybutadiene catalyst system
ActiveUS20100261847A1Improve productivityHigh yieldOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationPolymer scienceFour component
Provided are a molecular weight controllable, high 1,4-trans polybutadiene catalyst system, and more particularly, a four-component catalyst for preparing 1,4-trans polybutadiene with high yield, the catalyst comprising a cobalt compound, an organoaluminum compound, a phenol-based compound, and a phosphorus-based compound used to prepare 1,4-trans polybutadiene by polymerizing butadiene or a butadiene derivative, and capable of controlling the molecular weight of 1,4-trans polybutadiene by regulating the amount of the phosphorus-based compound.In particular, 1,4-trans polybutadiene may be efficiently applied to tires, belts, or the like since it has excellent tensile strength, tear strength, and cut & chip properties with increasing processability.
Owner:KOREA KUMHO PETROCHEMICAL CO LTD
Process for preparing polysubstituted silole
InactiveCN101284844ARaw materials are easy to getHigh isolation yieldSilicon organic compoundsEther solventButadiene Derivatives
The invention provides a general method for synthesizing silole derivate with a plurality of substituents. The general method comprises the following steps that: firstly, 1-trialkylated silicone base-1, 4-dihalo-1 and 3-butadiene derivate are reacted with lithium alkyl in ether solvent at a low temperature; secondly, quaternary amine or acylammonia ligand is added and the mixture is heated up to continue the reaction; thirdly, the mixture is cooled down and electrophilic reagent E+ is added; finally, polysubstituted silole derivate is obtained through the post treatment and the purification of reaction liquid. The method, being scientific and reasonable, has easily obtained raw material, wide application range, high separation yield and simple experimental equipment and operation, and is convenient for further development and application.
Owner:PEKING UNIV
Preparation and application methods of water-resistant polyurethane coating material
InactiveCN110079203AImprove water absorptionImprove corrosion resistancePolyurea/polyurethane coatingsDiluentAcid value
The invention belongs to the field of modified polyurethane in chemical engineering and relates to preparation and application methods of a water-resistant polyurethane coating material. During preparation, firstly, polyurethane, a diluent and a curing agent are added, polyurethane is dissolved in the diluent, and a polyurethane solution is prepared; maleic anhydride polybutadiene or a derivativeof maleic anhydride polybutadiene is added, and a polyurethane coating solution is obtained. In the polyurethane coating solution, the concentration of the maleic anhydride polybutadiene or the derivative of maleic anhydride polybutadiene is 30%-70%, and the acid value is 50-215 mg / gKOH. During application, the prepared polyurethane coating solution is applied to the surface of a matrix through brush coating. The coating can realize surface drying at 35 DEG C for 30 min and can be completely dried within 2 d. The corrosion resistance, hardness and adhesion of the coating are improved while thewater absorption of the coating is improved.
Owner:UNIV OF SCI & TECH BEIJING
A kind of preparation method of conjugated diene compound
ActiveCN107556153BRaw materials are cheap and easy to getMild conditionsOrganic compound preparationCatalystsPtru catalystNatural product
The invention belongs to the field of fine chemicals and related chemical technologies, and provides a preparation method of butadiene derivatives. Using phenylacetylene and its derivatives as raw materials, under the action of metal catalysts and additives, react in anhydrous organic solvents to convert them into 2,3-disubstituted-1,3-butadiene compounds. The invention has the beneficial effects of simple and convenient operation, mild conditions, environmental friendliness, the possibility of realizing industrialization, and obtaining butadiene compounds with a relatively high yield; the butadiene compounds synthesized by the method can be further functionalized Various compounds are obtained, which are then applied to the development and research of natural products, functional materials and fine chemicals.
Owner:DALIAN UNIV OF TECH
Polybutadiene derivative composition
InactiveUS20120289638A1Inhibition of polymerizationHindered phenol based stabilizerImpression capsOrganic chemistryMeth-Polybutadiene
An object of the present invention is to provide a composition containing a stabilizer which does not turn yellow upon curing and which acts as a polymerization inhibitor during production and storage of a (meth)acrylic modified (hydrogenated) polybutadiene. The curable composition is characterized in that it contains 0.1-99.9999% by weight of component (A) which is a (meth)acrylic modified (hydrogenated) polybutadiene, and 0.0001-10% by weight of component (B) which is a compound represented by formula (IV).
Owner:NIPPON SODA CO LTD
Novel bimetallic cobalt-aluminum adduct catalyst system for preparing high trans-1,4-polybutadiene
ActiveUS20150148503A1High monomer conversion rateIncrease productionOrganic-compounds/hydrides/coordination-complexes catalystsOxidation stateSolvent
The present invention relates to preparing high 1,4-trans-polybutadiene by polymerizing 1,3-butadiene or a butadiene derivative in a non-polar solvent in the presence of a catalyst system comprising a novel bimetallic cobalt-aluminum adduct, which makes it possible to prevent gel formation, control the molecular weight of the trans-polybutadiene and increase the trans content of the trans-polybutadiene. The catalyst system comprising the novel cobalt-aluminum adduct has a high oxidation state and structural stability, and the reactivity of the catalyst is controlled using novel activation systems comprising various allyloxy aluminum compounds.
Owner:KOREA KUMHO PETROCHEMICAL CO LTD
Method for preparing 1,1,4,4-tetrahalogenated-1,3-butadiene derivative by 1,4-dihalogenated-1,4-di(trisilicon methyl radical)-1,3-butadiene derivatives
InactiveCN101096330ARaw materials are easy to getHigh isolation yieldHalogenated hydrocarbon preparationButadiene DioxideTrimethylsilyl
The invention discloses an all-purpose method to synthesize 1, 1, 4, 4-tetrahalogenated-1, 3-butadiene derivant with multiple substituent groups, which is characterized by the following: reacting easily obtained 1, 4-dihydrogenated-1, 4-di(trimethyl silicon based)-1, 3-butadiene derivant and liquid bromine directly to obtain the product with high-productivity; obtaining the raw material easily; improving separating productivity with wide fitting scale; simplifying the experiment equipment and operation for industrialized manufacturing.
Owner:厦门康奥克科技有限公司
Process for synthesizing multi-substituent pyridine derivative and dipyridine derivative from nitrile
A process for synthesizing multi-substituent pyridine derivative and dipyridine derivative directly from nitrile and organolithium compound includes reaction of the 1,4-diiodo-1,3-butadiene derivative dissolved in ether or tetrahydrofuran solvent on n-butyl lithium or tert-butyl lithium at low-temp, adding nitrile and hexamethyl phosphamide, heating, quenching reaction, extracting, washing, drying, concentrating and purifying. Its advantages include high output rate and easy purifying of product.
Owner:席振峰 +2
Aromatic organosulfur functionalized 1,4-cis polybutadiene
Owner:KOREA KUMHO PETROCHEMICAL CO LTD
A kind of synthetic method and equipment for tetramethylammonium hydroxide
ActiveCN111962096BPrevent oxidationReduce corrosion rateElectrolytic organic productionElectrodesSupporting electrolyteTetramethylammonium hydroxide
The invention discloses a synthesis method and equipment for tetramethylammonium hydroxide. The synthesis method comprises dissolving a butadiene derivative and a supporting electrolyte in an organic solvent to obtain an electrode electrolyte, and electrolyzing a graphite electrode on the electrode. Electricity is applied under the liquid, so that a yellow polymer film is formed on the surface of the graphite electrode to obtain a modified graphite electrode, and the modified graphite electrode is used in the anode chamber of the electrolytic cell. The invention forms a layer of protective film on the surface of the graphite electrode, inhibits the oxidation of the graphite electrode, slows down the corrosion rate of the graphite electrode, improves the current efficiency of electrolysis, and can obtain good current efficiency even at a large electrolyte circulation rate and electrode life.
Owner:CANGZHOU SUNHEAT CHEM
Polybutadiene derivative composition
InactiveUS20150274863A1Hindered phenol based stabilizerInhibition of polymerizationMeth-Polybutadiene
A composition containing a stabilizer that does not turn yellow upon curing and acts as a polymerization inhibitor during production and storage of a (meth)acrylic modified (hydrogenated) polybutadiene. The curable composition contains 0.1-99.9999% by weight of component (A), which is a (meth)acrylic modified (hydrogenated) polybutadiene, and 0.0001-10% by weight of component (B), which is a compound represented by formula (IV).
Owner:NIPPON SODA CO LTD
Method of synthesizing hexa-2,4-dienedinitrile from 1,4-dihalogen-1,3-butadiene and cuprous cyanide
InactiveCN100503558CRaw materials are easy to getHigh yieldPreparation by cyanide reactionPhotochemistryButadiene Derivatives
Owner:厦门康奥克科技有限公司
Butadiene derivatives and process for preparing thereof
InactiveUS6248743B1Good antithrombotic activityBiocideOrganic chemistryAtrial ThrombusPercent Diameter Stenosis
A novel butadiene derivative of the formula:wherein Ring A is heterocycle, or benzene being optionally substituted by lower alkyl, alkoxy, nitro, hydroxy, substituted or unsubstituted amino or halogen, Ring B is heterocycle, or benzene being optionally substituted by lower alkoxy, lower alkylenedioxy or di-lower alkylamino, R1 and R2 are each H or lower alkyl, one of -COR32 and -COR42 is carboxyl, and the other is carboxyl being optionally esterified, or the corresponding amide or pyrrolidine derivatives, or a pharmaceutically acceptable salt thereof. Said compounds show excellent PAI-1 inhibitory activity and are useful in the prophylaxis or treatment of various thromboses such as myocardial infarction, intra-atrial thrombus in atrial fibrillation, cerebral infarction, angina pectoris, stroke, pulmonary infarction, deep venous thrombus (DVT), disseminated intravascular coagulation syndrome (DIC), diabetic complications, restenosis after percutaneous transluminal coronary angioplasty (PTCA), etc.
Owner:MITSUBISHI TANABE PHARMA CORP
A kind of lithium battery negative electrode binder and its preparation method and application
ActiveCN111816870BImprove securityImprove hydrophilicityCell electrodesSecondary cellsButadiene DioxidePlasticizer
The invention provides a lithium battery negative electrode binder and its preparation method and application. The lithium battery negative electrode binder is calculated in parts by mass, and the preparation raw materials include the following components: 40.0-55.0 parts of polyacrylonitrile compounds, 5.0-20.0 parts of butadiene compounds and 5.0-20.0 parts of styrene compounds; the polyacrylonitrile compounds are polyacrylonitrile and / or polyacrylonitrile derivatives, and the butadiene compounds is butadiene and / or butadiene derivatives, and the styrene compound is styrene and / or styrene derivatives. The preparation method of the binder includes an ultrasonic polymerization step and a homogeneous mixing step, and is easy to operate without adding initiator and plasticizer. The negative electrode sheet prepared by using the binder has the advantages of small impedance and not easy to break during processing, which further improves the safety performance of the lithium battery.
Owner:FULLYMAX BATTERY CO LTD
Method for preparing 1,1,4,4-tetrahalogenated-1,3-butadiene derivative by 1,4-dihalogenated-1,4-di(trisilicon methyl radical)-1,3-butadiene derivatives
InactiveCN100526272CRaw materials are easy to getHigh isolation yieldHalogenated hydrocarbon preparationButadiene DioxideTrimethylsilyl
The invention discloses an all-purpose method to synthesize 1, 1, 4, 4-tetrahalogenated-1, 3-butadiene derivant with multiple substituent groups, which is characterized by the following: reacting easily obtained 1, 4-dihydrogenated-1, 4-di(trimethyl silicon based)-1, 3-butadiene derivant and liquid bromine directly to obtain the product with high-productivity; obtaining the raw material easily; improving separating productivity with wide fitting scale; simplifying the experiment equipment and operation for industrialized manufacturing.
Owner:厦门康奥克科技有限公司
Synthesis method and equipment for tetramethylammonium hydroxide
ActiveCN111962096APrevent oxidationReduce corrosion rateElectrolytic organic productionElectrodesSupporting electrolyteTetramethylammonium hydroxide
The invention discloses a synthetic method and equipment for tetramethylammonium hydroxide. The synthesis method comprises the following steps: dissolving a butadiene derivative and a supporting electrolyte in an organic solvent to prepare an electrode electrolyte, electrifying a graphite electrode under the electrode electrolyte to form a yellow polymer film on the surface of the graphite electrode to obtain a modified graphite electrode, and applying the modified graphite electrode to an anode chamber of an electrolytic cell. According to the invention, a layer of protective film is formed on the surface of the graphite electrode, so that the oxidation of the graphite electrode is inhibited, the corrosion speed of the graphite electrode is reduced, the current efficiency of electrolysisis improved, and good current efficiency and electrode service life can be obtained even at a high electrolyte circulation rate.
Owner:信联电子材料科技股份有限公司
Method for synthesizing multiple fluoro-substituted naphthalene derivative from hexafluorobenzene
InactiveCN1951886AHigh yieldImprove responseLithium organic compoundsHalogenated hydrocarbon preparationHexafluorobenzeneLithium compound
The invention discloses a synthesizing method of naphthalene polyfluoride derivant synthesized by hexafluorobenzene and organic lithium compound directly, which is characterized by the following: reacting organic lithium compound by 1, 4-diiodio-1, 3-butadiene derivant and alkyl lithium; making 1, 4-diiodio-1, 3-butadiene derivant react with alkyl lithium first and hexafluorobenzene then to prepare the product.
Owner:席振峰 +1
Homoallylamine compound as well as synthesis method and application thereof
InactiveCN114656369AHigh reaction yieldHigh selectivityOrganic compound preparationAmino-carboxyl compound preparationAlkaneElectron donor
The invention provides a homoallylamine compound as well as a synthesis method and application thereof, and belongs to the field of organic chemistry. In the presence of an organic photosensitizer and an electron donor, imine reacts with a 1, 3-butadiene derivative and halogenated alkane under the irradiation of blue light at room temperature under the protection of inert gas, and the high-allylamine compound is obtained with high selectivity. The method has the advantages of mild reaction conditions, short reaction steps, simple post-treatment and high stereoselectivity and regioselectivity of reaction products. Meanwhile, the method can be used for derivatization of natural products and post-modification of drug molecules.
Owner:DALIAN UNIV OF TECH
Novel butadiene derivatives, process for preparation of the same and intermediates for the synthesis thereof
A butadiene derivative having an excellent inhibitory activity on the PAI-1, which is represented by the general formula [I]: wherein R<1 >is a hydrogen atom or a lower alkyl group, R<2 >is a lower alkyl group, R<3 >is a lower alkoxy group, R<4 >is a hydrogen atom or a lower alkyl group, R<5 >is a lower alkyl group, or a pharmaceutically acceptable salt thereof, a process a process for preparing the same and an intermediate thereof.
Owner:MITSUBISHI TANABE PHARMA CORP
4'-substituted benzyloxy-phenyl butadiene derivatives and preparation and uses thereof
InactiveCN100596294CEnhanced inhibitory effectBiologically activeOrganic active ingredientsOrganic chemistryAluminium chlorideDisease
The present invention provides a 4'-substituted benzyloxy -3',5'-dimethoxyphenyl-butadiene type derivatives and the medical salt or solvent thereof with the above general formula , wherein 4'-subsituted benzyloxy -3',5'-dimethoxyphenyl-benaldehyde and bromoethylcrotonate-triphenylphosphonium are mixed, and the mixture is reduced by a complex of lithium aluminium hydride and aluminium chloride to obtain the corresponding chemical compound. The chemical compound provided by the present invention has important biological activity, cytotoxicity experiments in vitro on human lung cancer cells (A549), human chronic myeloid leukemia cell Line (K562), human karyotype leukemia cell(HL-60), and mice lymph-type tumor (P388D1) tumor cells indicate that the derivatives of 4'-substrate benzyloxy -3',5'-dimethoxyphenyl-butadiene has the suppressive function on both the growth of tumor cells and multiple tumors in vitro, and can be applied to preparation of drugs for tumor prevention and treatment.
Owner:ZHEJIANG UNIV
Grafted and functionalized high 1,4-trans polybutadiene with aromatic organosulfur compound
ActiveUS8552120B2Maximize functionalityOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationOrganosulfur compoundsSolvent
The present invention relates to a process of preparing 1,4-trans polybutadiene grafted with an aromatic organosulfur compound, the process comprising (a) preparing 1,4-trans polybutadiene by polymerizing 1,3-butadiene or butadiene derivatives in a nonpolar solvent in the presence of a particular catalyst, and (b) preparing the 1,4-trans polybutadiene grafted with an aromatic organosulfur compound by reacting the trans polybutadiene with an aromatic organosulfur compound. The organosulfur molecule in the molecular chain minimizes ultra high molecular weight fraction and narrows the molecular weight distribution, thereby enabling this polymer to show improved processability and tensile properties.
Owner:KOREA KUMHO PETROCHEMICAL CO LTD
4'-substituted benzyloxy-phenyl butadiene derivatives and preparation and uses thereof
InactiveCN101161629ABiologically activeHas inhibitory effectOrganic active ingredientsOrganic chemistryAluminium chlorideDisease
The present invention provides a 4'-substituted benzyloxy -3',5'-dimethoxyphenyl-butadiene type derivatives and the medical salt or solvent thereof with the above general formula , wherein 4'-subsituted benzyloxy -3',5'-dimethoxyphenyl-benaldehyde and bromoethylcrotonate-triphenylphosphonium are mixed, and the mixture is reduced by a complex of lithium aluminium hydride and aluminium chloride to obtain the corresponding chemical compound. The chemical compound provided by the present invention has important biological activity, cytotoxicity experiments in vitro on human lung cancer cells (A549), human chronic myeloid leukemia cell Line (K562), human karyotype leukemia cell(HL-60), and mice lymph-type tumor (P388D1) tumor cells indicate that the derivatives of 4'-substrate benzyloxy -3',5'-dimethoxyphenyl-butadiene has the suppressive function on both the growth of tumor cells and multiple tumors in vitro, and can be applied to preparation of drugs for tumor prevention and treatment.
Owner:ZHEJIANG UNIV
Method for synthesizing multiple fluoro-substituted naphthalene derivative from hexafluorobenzene
InactiveCN100457700CHigh yieldImprove responseLithium organic compoundsHalogenated hydrocarbon preparationHexafluorobenzeneButadiene Dioxide
The invention discloses a synthesizing method of naphthalene polyfluoride derivant synthesized by hexafluorobenzene and organic lithium compound directly, which is characterized by the following: reacting organic lithium compound by 1, 4-diiodio-1, 3-butadiene derivant and alkyl lithium; making 1, 4-diiodio-1, 3-butadiene derivant react with alkyl lithium first and hexafluorobenzene then to prepare the product.
Owner:席振峰 +1
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